windmill- Ben

"How Do Windmills Work? «." Earth4Energy Review - The Truth About Earth 4 Energy. 16 Mar. 2009 <http://earth4forenergy.com/how-do-windmills-work/>.
WikiAnswers - How does a windmill function." WikiAnswers - The Q&A wiki. 16 Mar. 2009 <http://wiki.answers.com/Q/How_does_a_windmill_function>.
"History of Windmills." Windmills at Windmill World. 28 Feb. 09. 16 Mar. 2009 <http://www.windmillworld.com/windmills/history.htm>.
"History of the windmill ." Www.sapiensman.com. 16 Mar. 2009 <http://www.sapiensman.com/old_machines/windmills_history.htm>.


"Windmill -." Wikipedia, the free encyclopedia. 13 Mar. 2009. 16 Mar. 2009 <http://en.wikipedia.org/wiki/Windmill>.